Tension means for winding machines



May 18, 1937 F. KLEIN TENSION MEANS FOR WINDING MACHINES Filed May 15, 1936 ATTORNEY. i V

Patented May 18, 1937 UNITED sTATEs PATENT opp E- TENSION MEANS FOR WINDING MACHINES Frederick Klein, Glen Rock, N.;-,J., assignor to Sipp-Eastwood Corporation, Paterson, N. J., a corporation of New Jersey I Application May 15, 1936, Serial No. 79,844 3 Claims. (cram-450 This invention relates to mechanism for tenlaterally projecting therefrom and' affording a sioning yarn anterior to draft means therefor. yarn-guide at 8a, is of well known construction; It is known to provide a yarn-support which Projecting from the frame and forming there may tilt and a pressure device coactive' therewith with a part of the supporting structure is a fixto grip the yarn and normally urged (as by gravture 9 having a *U-shaped terminus arranged in ity) in a straight path extending through, and .a' vertical planeand provided with an extension 5 crossing the pivoting axis of, such support, the I 0 projecting from the lower arm of its U and mechanism having yarn guiding means confining equipped with an annular yarn-guide ll of ample the yarn between said support and device. The diameter. In effect a fixed extension of this 10 present invention distinguishes from what is thus fixture is a U shaped bracket I2, arranged in a 10 known principally in that there are means to vertical plane and attached to the fixture at Ma. guide the yarn which are oifsetfrom each other The arms of the Uofthis bracket receive a spindle lengthwise of the pivotingaxis ofthe support; l3 arranged in a vertical plane but so as to stand this has the importantadvantage that the supinclined inwardly and upwardly, the spindle beport on shifting may be adapted not of itself to ing preferably screwed into the upper arm which cause bending, with friction and hence the interminates-in a transverse yarn-guide M. trusion of a tension factor other than that con- The mentioned yarn-support here includes, templated by the action of the pressure-devicewith a metal block 15 havingja back-rib |6'pene- In the preferred form one of the yarn guiding trated'by the spindle, disks 15a freely rotative v means is arranged at the output side of the preson studs 11 projecting one above the other from 20 sure device and has a yarn-contact surface eX- the block; All that is here broadly materialis tending transversely of said axis. Preferably, that the yarn-support affords, as by the outer also, there is a plurality of the pressure devices faces of eachof what are here shown as ele'ments and what confines them to the support may be 15a distinct from the block, a yarn-supporting the yarn guiding means, arranged as indicated. surface. The yarn-support may tilt on the In the example herein set forth yarn is being spindle, or turn thereon from the position shown formed into a wound mass on a-suitable rotated in Figs. 1 and 2. core, being anterior to the core subject to the Opposed to the outer face of each disk i5a and 1 tension means above generally outlined, and there confined in opposing relation thereto by a stud is means, normally held bearing against said His the mentioned pressure means, here a grav- 30 mass peripherally thereof and connected with the ity-actuated disk l8, which may also be rotativeyarn-support, for transmitting pivotal movement on thestud. I to the yarn support from said mass to cause the A preferred form of the yarn-support and prestension on the yarn to decrease as the wound sure means is shown by Figs. 3 and 4. The block mass increases in diameter. l5 has in its front face two circular recesses I9, 35

In the drawing, One above the other, and a stud 20 upstanding Fig. 1 is a side elevation of a known form of centrally from each recess and preferably winding machine made to embody the invention; equipped with a freely revoluble bushing 2|, there Fig. 2 is a plan of the tension means and other being a soft (as felt) washer 22 resting against 40 parts shown in Fig. 1; the bottom and central of the recess. Coaxial 40 Fig. 3 is a vertical sectional view of the prewith each stud is a freely revoluble concentrically ferred form of the yarn support and pressure corrugated disk 23 corresponding to disk l5a. means detached from the structure in which the Opposed to this disk and corresponding to disk yarn-support is mounted; i8 is a freely revoluble pressure disk generally 5 Fig. 4is a similar but fragmentary view of what indicated in Fig. 3 by character .24 and shown is shown in Fig. 3 on a larger scale. more clearly in Fig. 4 as comprising aconcen- The winding machine shown, embodying frame trically corrugated disk-like element 24a, the cor- I, the spindle 2 therein rotated at constant rugations of the latter being formed to mesh wit speed and on which the windings of yarn 3 drawn those of disk 23. I from any suitable supply, not shown) are formed If the disks are rotative they will be progres- 5 into a wound mass 4 having a taper, the leversively rotated by the travelling yarn so as to like element 5 fulcrumed at 5a in the frame and avoid the latter grooving them by friction; the having a traversing yarn-guide 6 held bearing purpose in forming disks 23 and 24a with interagainst said mass by a. counter-weight 1 on said meshing corrugations is to enhance and steady element, the clutch-detent la, and an arm 8 their grip on the yarn. 55

Projecting from the front face of the block at its lower end is a post or guide 25. Theyarn extends from its supply through guide I I and'between each yarn-supporting surface of the yarnsupport and the corresponding pressure means and then over and under, respectively, the guides l4 and 8a to yarn-guide 6, extending in alternation past the opposite sides of post 25 and the two studs H or porcelain-hushed studs 20, as shown, all of which studs serve as yarn-guides. Thus the yarn is confined, while travelling, between the yarn-support and each pressure means.

Fulcrumed between its ends on fixture 9 is a lever 26. One arm thereof is connected by a link 27 with a lug 15b of the yarn-support, eccentric with respect to spindle I3, and the other arm' is connected by a link 28 with the element 5, this linkbeing engageable in any of a series of notches 29 of said element, in which it is removably held by a clip 30.

Operation: Gravity active on each pressure means when the yarn-support, is in the position shown is causing said means toexert a certain degree of pressure on the yarn. If the yarn-support be tilted from that position such pressure will obviously decrease, again increasing when the yarn-support is returned to the position shown.

When the yarn is being formed into a wound mass and it is desired, for instance and as usual, to provide for a decrease of tension on the yarn as said mass grows in diameter the means 6-528-26-2'| serves to change the position of the yarn-support, specifically here to tilt it so that the pressure of the pressure means against and consequently the tension on the yarn is gradually decreased.

Having' thus fully described my invention what I claim is:

1. The hereindescribed mechanism for tensionguiding means offset from each other lengthwise I of said axis and maintaining the yarn between said support and pressure means.

2. The hereindescribed mechanism for tensioning lengthwise travelling yarn including, with supporting structure, a yarn-support pivotally movable thereon, and pressure devices each normally urged to move in a straight line extending through, and crossing the pivoting axis oi, such support andcoactive with the latter to grip the yarn, said mechanism having yarn guiding means ofiset from each other lengthwise of said axis and maintaining the yarn between said support and devices and also-confining the latter to said support.

3. The hereindescribed mechanism for tensioning lengthwise travelling yarn including, with supporting structure, a yarn-support pivotally movable thereon, and pressure means normally urged and confined to the support to move in a straight line extending through, and crossing the pivoting axis of, such support and coactive with the latter to grip the portion of the yarn extending between them, said, mechanism having yarn guiding means oflset from each other lengthwise of said axis and maintaining the yarn a i between said support and pressure means, and

one of which is at the output side 01 the pres 

